baber/WOPTO huggingface dataset:
Patent GB-1224298-A (GB)
Title: Improvements in heat pipes
Inventor: BUSSE CLAUS
IPC: F28D15/04
Filed: 1969-11-19
Abstract: 1,224,298. Heat pipes. EUROPEAN ATOMIC ENERGY COMMUNITY (Euratom). 19 Nov., 1969 [5 Dec., 1968], No. 56688/69. Heading F4U. A heat pipe whose heat carrier is in the solid state at start up is partially bridged by at least one auxiliary heat pipe to increase the initial transmission of heat along the main pipe. The auxiliary heat pipe(s) may be formed in the wall of the main pipe, may be secured internally or externally to the wall of the main pipe, or may be located along the axis of the main pipe so as to heat the wall of the latter by radiation. A plurality of auxiliary heat pipes may be thermally connected in series, and each pipe of the series may be thermally connected either at its ends or over its whole length to the main pipe. A second series of auxiliary pipes may be staggered with respect to the first series so as to bridge the joints between the pipes of the first series. If it is undesirable to heat the main pipe above the melting temperature of its heat carrier, the auxiliary pipe(s) will be arranged along the axis of the main pipe or on fins extending externally from the wall of the main pipe.
Patent GB-1336319-A (GB)
Title: Production of alpha-olefin polymers
IPC: C08F2/00
Filed: 1970-12-01
Abstract: 1336319 Olefin polymerization catalyst MITSUBISHI PETROCHEMICAL CO Ltd 1 Dec 1970 [8 Dec 1969] 56953/70 Heading C3P Polymers of high crystallinity are obtained by polymerizing α-olefins in the presence of a catalyst comprising (i) a compound of a transition metal of Group IV, V or VI: (ii) an organometallic compound of a metal of Group I, II or III; and (iii) a tropylium (including substituted tropylium or fused ring-tropylium) salt. The catalyst components may be mixed in any order and, for example, (ii) and (iii) may be aged together before the addition of (i). The poly. merization of propylene is described, using heptane as the dispersion medium or dispersing the catalyst on preformed polypropylene and carrying out the polymerization in the gas phase. In the examples the catalyst components are (i) TiCl 3 , (ii) Et 3 Al, Et 2 AlCl or (i-Pr) 2 AlCl, and (iii) various tropylium salts. A comparative example describes the use of triphenylmethyl chloride instead of the tropylium salt.
Patent GB-1373223-A (GB)
Title: Process for producing photographic emulsions
Inventor: SAKAI T
IPC: G03C1/005
Filed: 1971-12-09
Abstract: 1373223 Silver halide emulsions FUJI PHOTO FILM CO Ltd 9 Dec 1971 [10 Dec 1970] 57349/71 Heading G2C A process of making a spectrally sensitized silver halide photographic emulsion comprises dissolving at least one photographic sensitizing or desensitizing dye in an aqueous solution of at least one surface active agent containing a hydrophilic group selected from-SO 3 <SP>-</SP>, OSO 3 <SP>-</SP> or COO<SP>-</SP> and adding the resultant solution to a silver halide emulsion. The surface active agents also preferably contain at least one hydrophilic group such as an aliphatic hydrocarbon having up to 20 C, or an aromatic group substituted by at least one saturated or unsaturated hydrocarbon group having up to 18C. The surfactants are exemplified by e.g. sodium dodecyl-sulphate, sodium dodecylbenzenesulphonate, sodium oleate oleyl- N- methyl sodium tauride and saponin. The aqueous solution may contain up to 30 wt per cent of an organic solvent which is miscible with water. The dyes are cyanines (1, 3, 5, methines) or merocyanines (0. 2. 4. methines) which contain 1, 2, or 3 heterocyolic rings and preferably carry an -SO 3 - or -COO- substituent.
Patent GB-1246153-A (GB)
Title: Programme unit for data editing systems
IPC: H04L12/18
Filed: 1968-12-04
Abstract: 1,246,153. Selective signalling. EXTEL CORP. 4 Dec., 1968 [4 Dec., 1967], No. 57626/68. Heading G4H. A circuit is programmed to respond to particular sets of identifying characters, e.g. representing the identity of shares for which stock market quotations are to be monitored. Incoming identity and quotation characters are stored in a relay shift register, the first three stages 101-103 of which are connected to stages 281A, 282A, 284A. . . of an identification circuit, each stage providing a parallel operating circuit to an output enabling relay 361 in the event that a corresponding set of identifying characters is in stages 101-103. Each stage includes three printed circuit cards such as 411, 422 and 473 arranged to selectively connect the mark-space terminals of switches 131A-256A to series conductors 417, 467, 477. The cards are readily interchangeable so that the shares monitored can be easily changed. Stage 282A includes a "terminal" card 577 which merely serves to connect conductors 567 and 401, this stage selecting a share identified by only two characters. Similarly stage 284A selects a share identified by a single character and includes a terminal card and a blank card.
Patent GB-1298333-A (GB)
Title: Improvements in or relating to vehicle braking systems
Inventor: PAGE WILBUR MILLS
IPC: B60T15/04
Filed: 1968-12-06
Abstract: 1298333 Compressed air braking systems CLAYTON DEWANDRE CO Ltd 4 Dec 1969 [6 Dec 1968] 58092/68 Headings F2F and F2V In a tractor-trailer vehicle compressed air braking system 3, a manually operated pressure valve 9 is interposed in the air supply to spring brake units 12 provided on the tractor only, the output pressure of the valve being limited by the action of a graduating loading spring which is interchangeable and/or adjustable according to operating requirements. In the embodiment shown a three line system for a tractor/trailer has trailer service and emergency lines 5, 6 supplied via a pedal operated dual valve 1 from reservoir 2a, 2b, an auxiliary line 7 being supplied from a separate reservoir 8 via changeover valves 10, relays 11 and valve 9. Valve 9 comprises two graduated pressure valve assemblies 16, Fig. 3 (not shown), controlling respectively the spring brake units 12, and auxiliary line 7 and operated simultaneously but in an opposite sense by a cam element 15 attached to a hand lever 28 and rotatable about a vertical axis and engaging a cam follower 26 of each assembly which actuates a plunger 17 slidable in a cylindrical body 19. On downward movement of the plunger 17 its lower end engages seat 18 to close off an exhaust passage 22, further movement of the plunger establishing communication between a chamber 23 connected to the air supply and an upper chamber 24 connected to the respective spring brake unit controlled by the valve. The plunger thrust is transmitted through a spring 25 to seat 20 which is fast with body 19 and which is moved against the action of a graduating load spring 21, a follow up action being necessary to maintain the valve open. To facilitate the use of the spring brakes for parking an "on-off" valve is provided comprising a plunger 30 displaced by raising hand lever 28 moved through on L-shaped gate, Fig. 4 (not shown), from full "Brakes-on" position, to close a tubular valve member 33 on its seating 38 an exhaust connection to the two graduated pressure valves via passage 35 being opened to render the trailer brakes inoperative with the spring brakes applied. The lever 28 carries a spring loaded hand knob 41 having a spigot portion 42 which engages a detent (43) in the valve cover 27 provided with a socket (44) which locks the lever in the "park" position.
Patent GB-1205577-A (GB)
Title: Improvements in or relating to colloidal solutions of silica
Inventor: ROSIN JACOB
IPC: C01B33/145
Filed: 1967-12-28
Abstract: 1,205,577. Silica-in-ethanol sol. STAUFFER CHEMICAL CO. 28 Dec., 1967, No. 58790/67. Heading C1A. A silica sol in ethanol is prepared by hydrolysing ethyl silicate in the presence of a small amount of strong mineral acid such as hydrochloric acid which acts as a catalyst. The starting material is an anhydrous ethanolic solution of tetraethyl orthosilicate (28% SiO 2 ) or of commercially available ethyl polysilicate (40% SiO 2 ); to which is added 0.133 to 2.65 milliequivalents of acid per litre, but preferably 1À3  milliequivalents/litre. Water is added to the ethanolic solution in the amount required to completely hydrolyse the ethyl silicate. Because of the low concentration of acid catalyst the addition of water must be carried out slowly (over a few minutes with solutions at room temperature) and the rate of addition must be determined by the operator so that a two-phase system is not formed. If a two-phase system is allowed to stand an irreversible precipitation of silica begins to take place, but the sol may be recovered by filtering off the precipitate. The hydrolysis is completed by allowing the sol to stand overnight.
Patent GB-1419499-A (GB)
Title: Burner unit for infra-red radiation heating
IPC: F23D14/14
Filed: 1972-12-20
Abstract: 1419499 Radiant burners SCHWANK GmbH 20 Dec 1972 [21 Dec 1971] 58873/72 Heading F4T A radiant burner has a, preferably ceramic, plate 1 with parallel combustion passages which are combined in groups, each group consisting of a central passage 3 and peripheral passages 4 therearound, the radiating side of plate 1 having recesses 2, one for each said group, the central passages 3 terminating at the middle of the recesses 2 and passages 4 being at the peripheries thereof, additional passages 7 being provided in webs 8 between said groups, each recess having a lateral surface parallel to the axes of passages 4 and a bottom surface at an angle thereto, each passage 4 being intersected by both the bottom and lateral surface of the corresponding recess 2 so that each passage 4 consists of two juxtaposed longitudinal portions 4a, 4b of different length, the outer portions 4b terminating at the radiating surfaces of webs 8 and being in the shape of a channel open to the corresponding recess 2. Each said lateral surface may be formed by two super-posed cylinders of different diameter. Said bottom surfaces may be planar, conical or hemispherical. There may be four to eight passages 4 per group. Passages 3, 4 and 7 may be of equal diameter in the range 0À5 to 1À5 mm. The recesses 2 may be 2 to 5 mm. deep and 2 to 5 mm. in diameter at their tops.
Patent GB-1449649-A (GB)
Title: Presveration of crustacea
IPC: A23B4/12
Filed: 1973-12-21
Abstract: 1449649 Preserving crustacea GUTIX SA 21 Dec 1973 [14 May 1973] 59327/73 Heading A2D  An additive for inhibiting melanosis in crustacea comprises a mixture of 25-35% magnesium carbonate, 40-60% of citric acid and 15-25% of a sulphide, bisulphide or metabisulphide of soda or potash, each of the three ingredients passing through a 400 mesh/- sq. cm. sieve. The additive is prepared by milling each of the three components to the desired mesh size, mixing the three components in the required proportions, packing the resultant product into bags and hermetically sealing said bags. Crustacea may be preserved by placing 20 gms of additive per kgm of crustacea in a container, adding the crustacea and then I litre of water per kgm of crustacea, the crustacea being removed after 10 mins, and frozen or chilled in ice.
Patent GB-1419290-A (GB)
Title: Preparation of viscose
IPC: C08B9/00
Filed: 1973-12-27
Abstract: 1419290 Producing cellulose xanthate TEEPAK Inc 27 Dec 1973 [26 Dec 1972] 59757/73 Heading C3A Cellulose xanthate is produced by reacting alkali cellulose crumb with carbon disulphide mixed with carbonyl sulphide in a reactor. The reactor pressure is from 100-700 mm. Hg absolute, the carbon disulphide contains from 2À5 to 10 mole per cent of the carbonyl sulphide; the proportion of carbon disulphidecarbonyl sulphide mixture added is from 1 to 1À5 moles per kilogram of alkali cellulose; the reaction temperature is from 20‹ to 35‹ C. and the reaction time is from 40 to 75 minutes.
Patent GB-1372388-A (GB)
Title: Swingable guide for flexible lines
IPC: A01K87/04
Filed: 1972-11-29
Abstract: 1372388 Mounting pulleys H K HALLETT 29 Nov 1972 [22 Dec 1971] 59780/71 Addition to 1310279 Heading B8B [Also in Division A1] A guide device for flexible lines comprises a pulley block 15 upstanding from a rotor block 10 which is rotatably mounted on a hollow tip 1 receivable on the end of a rod, (e.g. fishing rod) the base 11 of the rotor block having a blind bore in which is journalled a ring member at the end of the tip 1, the base either being deformed to lock it on to the ring or sprung on to the ring. The line passing along the rod extends through a split in the ring and though the slot 14, whilst the rotor block is in a position 180 degrees from its normal operating position, the line thereafter passes around the pulley 18 and a guide slot 19 formed by the pulley block side plates.
Patent GB-1512480-A (GB)
Title: Soil working implements and methods
IPC: A01B49/02
Filed: 1973-12-28
Abstract: 1512480 Soil working implements and methods NATIONAL RESEARCH DEVELOPMENT CORP 26 March 1975 [28 Dec 1973] 59950/73 Heading A1B Topsoil is removed by a plough (or rotary cultivator) from underlying subsoil which is then worked by a rotary cultivator, and is deposited on worked subsoil. In Figs. 1 and 4, the plough 11 is behind the rotary cultivator 12 and laterally offset so that the topsoil removed by the plough 11 from the unworked soil 32 to expose the subsoil 33, is deposited on the subsoil 34 which has just been worked by the rotary cultivator 12. Three such assemblies of plough 11 and cultivator 12 are coupled together in echelon to form a multi-furrow implement (Fig. 5). In Fig. 9, the rotary cultivator 12 is immediately behind the plough 11 so that the topsoil removed by the plough 11 is deposited on the subsoil 34 which was worked by the cultivator on the preceding pass of the implement. Fertiliser is dispensed onto the subsoil before or during working by the cultivator, through a spout 39 behind the plough 11 or in front of the cultivator 12 (Figs. 1 and 4) or between the plough 11 and the cultivator 12 (Fig. 9). Fertiliser is metered by a device rotated by a land wheel.
Patent GB-1294660-A (GB)
Title: Improvements in or relating to an internal combustion piston engine
Inventor: SMITH JOHN HENRY
IPC: F02B1/00
Filed: 1968-12-24
Abstract: 1294660 Two-stroke I.C. engines; rotary compressors J H SMITH 5 Dec 1969 [24 Dec 1968] 61242/68 Headings F1B, F1F In an engine having a pair of cylinders 11 and 12, one of which is supplied with air and the other with fuel and air, the cylinder charges are simultaneously compressed into a common combustion space 19 by the respective pistons 16 and 17 which are out of phase except at their dead centres. The cylinders 12 may be supplied with fuel-air mixture by a compressor 25 comprising a hollow shaft 27 carrying an eccentric 29 which rotates in a sleeve 34. Mixture is fed to chambers between the vanes 33 through ports 28, 30 and 32 and delivered to the cylinders 12 through pipes 38 and electric heating devices 41. Air for scavenging may be supplied to a larger diameter cylinder 11 of the engine through a non-return valve by a vane compressor or pump piston 44, Fig. 3 (not shown), coupled to the connecting rod 21 of the piston 16. The pump piston 44 operates in a cylinder 43 arranged at 90 degrees to the pair of combustion cylinders. A valve 39, Fig.1, connecting the cylinder 11 to the exhaust port 40 provides for reduction in charge compression. The cylinder 12 may be supplied with air, and fuel injected under pressure about 120 degrees before T.D.C.
Patent GB-1282059-A (GB)
Title: Copying apparatus
IPC: G03G15/00
Filed: 1969-12-19
Abstract: 1282059 Electro-photography INTERNATIONAL BUSINESS MACHINES CORP 19 Dec 1969 [15 Jan 1969] 61927/69 Heading G2H An electro-photographic copier has a rotatable drum 10 enclosing supply and take-up reels 14, 16 for photo-conductive material 13 which may be fed through a slit 19 in the drum to be supported on the outer surface of the drum 10 for repeated passage through conventional processing stations until a predetermined number of copies are made when the material 13 on the drum surface is automatically replaced by fresh material by rotation of reels 15, 16 relative to the drum 10. When material 13 is exhausted, automatic shutdown ensues. Advance of photo-conductive material 13 to the drum surface occurs when a solenoid 74, Fig. 3 (not shown), is actuated to lock a ring gear 50, freely rotatable on sleeve bearing 47, relative to the frame of the machine. Rotation of the drum 10 then causes rotation of take-up 16 through gear-train 51, 52, 55, 56. A metering roll (95) Fig. 5 (not shown), spring-biased into contact with take-up reel 16, rotates a metering gear (100) having an annular inner face cam (120) which is engaged by camfollower roller (121) to actuate a micro-switch (133) which de-energizes solenoid (74). Mechanisms are provided to count the copies made and the number of photo-conductive material advances. When a pre-selected number of copies has been obtained from one piece of the material 13, solenoid (74) is automatically actuated to bring fresh photo-conductive material 13 to the surface of the drum 10. The supply roll 14 is locked during the copying cycles and is braked during material advance to tension the material properly over the drum surface.
Patent GB-646688-A (GB)
Abstract: 646,688. Endless-belt conveyers ; water channels. BLANTYRE ENGINEERING CO., Ltd., and ROGERSON, H. W. Oct. 28, 1948, No. 27985. [Class 78 (i)] [Also in Group II] Coal is discharged into a hopper 10 by an endless belt conveyer 15 and water enters the hopper through pipes 11, 12. The coal and water stream is discharged at 16 to a coalwashing apparatus. Pivoted flaps 13 or 14 are displaced by coal entering or leaving the hopper and are interconnected by the rod 22 to operate air pilot valve 23 which controls the water supply to the hopper, stopping it when coal neither enters nor leaves the hopper.
Patent GB-2001558-A (GB)
Title: Production of electrical steel sheets and strips
IPC: B21D1/05
Filed: 1978-07-13
Abstract: A process for producing electrical steel sheets and strips, more particularly silicon steel strips, whereby the magnetic properties are substantially improved in respect of the iron losses or the hysteresis losses, without detriment to other characteristics, comprises subjecting the strip to flexure, during a plastic deformation stage at least prior to the final anneal and possibly during hot- rolling during the production of cold- rolled electrical steel strips. The strip is preferably subjected to a furnace tension of 0.75 kg/mm<2> maximum in the annealing line, and is preferably flexed under a stretching strain of 0.8 to 5.0% depending on its Si content. A flexing unit 2 is provided with at least two adjustable rolls 3 with a diameter at the most 50 times the strip 1 thickness, and the theoretical wrap angle over each of the rolls is greater than 25 DEG , preferably 40 DEG  to 50 DEG . <IMAGE>
Patent GB-2034105-A (GB)
Title: Improvements in or relating to radiography
IPC: H01J35/30
Filed: 1978-11-07
Abstract: In scanning x-ray tubes distortion by eddy currents of the scanning fields which intrude into anode shroud 9 region is countered by lining the shroud 9 with a magnetic shield 10 to reduce the field component in that region. The shield may be formed integrally of the shroud during casting. Shield materials are instanced and anode 5 may be oil cooled. <IMAGE>
Patent GB-2010885-A (GB)
Title: Azo dyes
IPC: C09B29/08
Filed: 1978-11-16
Abstract: The invention relates to azo dyes of the general formula:-   <IMAGE>  where D is the radical of an aromatic diazo component or of a diazo component of the thiadiazole, triazole or pyrazole series, R<1> is hydrogen, methyl, ethyl, chlorine, bromine, methoxy or ethoxy, R<2> is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy, C1-C4-alkylsulfonylamino, C1-C5 alkanoylamino, C1-C4- alkoxycarbonylamino, phenylsulfonylamino or benzoylamino, A<1> is C1-C4-alkyl, C3-C5-alkenyl, C3-C5-alkynyl, cyclohexyl or a radical of the formula   <IMAGE> A<2> is C2-C6-alkylene which may or may not be interrupted by oxygen,  A<3> is C2-C4-alkylene,  A<4> is C1-C4-alkyl and  n is 1, 2 or 3. The dyes of the invention are useful for dyeing and printing synthetic and cellulosic fibers, especially polyesters, to give dyeings and prints which have good light fastness, wet fastness and good fastness to thermofixing.
Patent GB-2036415-A (GB)
Title: Electron-optical Beam-forming Arrangement for Cathode-ray Devices
IPC: H01J29/48
Filed: 1978-12-07
Abstract: The cathode 7 is followed by a control electrode 2 and a sequence of flat apertured, diaphragms forming an accelerating electrode 3, a first anode 4, a focusing electrode 5, and a second anode 6. The first anode 4 is formed by spaced diaphragms 12 and 13 electrically connected to one another and to the second anode 6. The diameters of the apertures of the electrodes 4, 5, and 6 are equal to one another, and the spacing between adjacent ones of the diaphragms forming them ranges from 0.55 to 0.8 of this diameter. The invention is suitable for use with c.r.t. indicators, for example, with black-and white kinescopes and display units. <IMAGE>
Patent GB-2037930-A (GB)
Title: Applying Resin for Fabrication of Plastic Pipe
IPC: B29C53/80
Filed: 1978-12-20
Abstract: Reinforced plastic pipe is made at high rates using a wiper 25 to remove resin from the surface of the rovings after they are applied to a rotating mandrel 10. The wiper comprising a plurality of parallel, spaced filament segments 105 leaves an optimum surface layer of resin on the rovings. For small diameter pipe, production rates are further increased by rotating the mandrel above its first critical speed. <IMAGE>
Patent GB-2020219-A (GB)
Title: Releasing a Toroidally Shaped Uncured Tire Carcass from a Carcass Shaping Sleeve
IPC: B29D30/26
Filed: 1979-05-04
Abstract: An uncured tire carcass C, having been shaped from a cylindrical to a toroidal shape in contact with an elastically expandable sleeve 5, is released from the sleeve without deformation by admitting atmospheric air flow between the sleeve 5 and the carcass C by way of small closely spaced grooves 16 sunk in the exterior of the sleeve. <IMAGE>
Patent GB-2031860-A (GB)
Title: Filing or like storage system
IPC: B65G1/10
Filed: 1979-05-31
Abstract: A storage system for books, files etc is of the kind having rack structures in the form of cabinets, each of standard width W, which are supported on wheels to run along parallel rails 11 which extend normal to the width W of the cabinets and at a spacing equal to the width W, the rails, 11 forming part of a floor-mountable track system composed of modular lengths L of the rails 11 and spacer members 18 which are interconnected by plates 17, the rails 11 having feet (21, Figure 4), threaded shanks 22 of which are adjustable in nut inserts (23) in the rails 11, and which are adapted to rest on the supporting floor without being anchored thereto, whereby the system can be readily removed, rearranged, expanded or otherwise modified, without damage to or modification of the supporting floor. The specification also discloses details of a wheeled base structure by which pairs of cabinets arranged back to back are supported on a common set of wheels (Figures 3 and 5). <IMAGE>
Patent GB-2028310-A (GB)
Title: Acetylsalicylic acid derivative
IPC: C07C69/157
Filed: 1979-06-26
Abstract: An acetylsalicylic acid-zinc chelate exhibits improved anti-inflammatory properties with reduced irritation of the gastro-intestinal mucous membrane. The acetylsalicylic acid-zinc chelate is produced by reacting acetylsalicylic acid with zinc hydroxide or sulphate in the presence of a weak base.